Fred,
I have a Mag 52 that I started with on my trainer. I later ran across a couple O.S 52 in new conditiona and Switched the trainer over to one of them. It was not a finicy as the Mag. I traced the mag idle issues to the carb and Hobby People replaced it, but it still didn't run as well as the O.S. engines did. I checked the carbs and the O.S. is a bolt on replacement for the Mag. I've now got an O.S. carb, curtiosy of a crash, that I'll put on one engine, and I'll pull the carb off the O.S. Im flying now. That should help with the problems I had before. Humm, I've got my little funstar with the other o.s in it , I' should be breaking in eingines now, I never even thought to use it as a break-in airframe. If I switch carbs, the mag is a bolt in replacement for for the o.s. in it now. Beter than setting in the back yard listening to an engeine run for hours.

Stuntpplot, thanks a bunch for that link. I'm sure I'm going to be reading and re-reading it as I go along.

I really want retracts in this guy, but they seem to be on back order for ever, one part or the other. I've been considering making a set with motor drives to fit. I'm hoping that I can used the fixed gear until I get the retracts done.

Back to work.

Don